This guide provides the exact mechanics, score function, and wallet behavior for the original demo. No external catalogue is verified.
Board Support & Probability
The game uses a 4x4 grid. The mine count choices are restricted to exact nonempty support configurations found in the source. The board is not drawn from all possible combinations but uniformly from the "legal-board support" for the selected mine count.
After each safe reveal, the support set is filtered. The probability of a cell being safe is conditional on the remaining compatible boards. Cells with zero conditional safe probability are disabled.
What Philippines Players Should Check
When playing the 3xx demo in the Philippines, remember that this is a free game using virtual coins, not real money. However, you should verify how the operator handles real-money versions regarding local standards. First, check if the platform supports the Philippine Peso (PHP) for deposits and withdrawals, as this avoids conversion fees. Second, confirm which local e-wallets are accepted, specifically GCash and Maya, as these are the most common payment methods used by Filipino players for quick transactions.
You must also verify the operator's regulatory status. While PAGCOR is the national regulator for gambling in the Philippines, 3xx may operate under a different license. Always check the operator's official site to see if they hold a valid PAGCOR license or another recognized international certification. This ensures your funds are protected under local or international law. Additionally, check the terms for responsible play and withdrawal limits to ensure they align with your personal budget.
- Check if GCash and Maya are supported for deposits.
- Verify if the operator holds a valid PAGCOR license.
- Confirm that the demo uses virtual coins and not real PHP.
Score Function & Payout
The gross payout is determined by the reduction in the support set. The formula is:
| Component | Value |
|---|---|
| Gross Quote | 0.96 × Captured Stake × Initial Support Count / Current Compatible Support Count |
The exact gross RTP is 0.96 across all modes. Measured RTP varies slightly due to sample size but converges to this value.
Stopping Rules & Cap
A round ends in one of three ways:
- A mine is revealed (gross return is zero).
- You manually bank after at least one safe reveal.
- No eligible cells remain (automatic banking).
A 1000-times-stake cap is enforced. If a safe reveal would exceed this cap, that action is disabled. The current quote is automatically banked only when no eligible cell remains or all safe cells have been revealed. Manual bank becomes available only after at least one safe reveal.
Controls & Modes
Stake, mine-count and refill controls are locked during an active round; eligible cells and banking after a safe reveal remain available. You cannot change the stake or mine count. Sound remains available. There is no auto queue. The refill button is available only while idle and below a balance of 10.
Wallet & Persistence
The demo wallet persists locally. Fractional carry is preserved across settlement, refill, and reload. If you refill while idle and the balance is below 10, the balance is set to exactly 1000. An unfinished round ends on reload without refund or resume. Virtual coins have no cash value.
Mathematical Evidence
The following table shows exact gross RTP and measured RTP for various mine counts and safe paths. Note that measured RTP is an estimate based on simulation rounds.
| Mines | Safe Path | Exact Gross RTP | Measured RTP | Gross Multiplier |
|---|---|---|---|---|
| 3 | [0] | 0.96 | 95.9676 | 1.1920 |
| 3 | [0,1,2] | 0.96 | 95.9644 | 1.9274 |
| 3 | [0,3,6,9,12,15,2,5,8,11,14,1,4] | 0.96 | 95.8171 | 503.04 |
| 5 | [0,3,6,9,12,15,2,5,8,11] | 0.96 | 95.5991 | 802.56 |
Frequently asked questions
How is the board drawn?
The board is drawn uniformly from all legal boards satisfying the constraint that no contiguous 2x2 square has exactly three mines. It is not a random selection from all possible 4x4 boards.
What happens if I reload the page mid-round?
The unfinished round ends without refund or resume. The settled balance and fractional carry are preserved, but the current game state is lost.
Can I auto-bank?
There is no user-selectable automatic banking mode. Manual banking is available after a safe reveal. The game automatically banks the current quote when all safe cells have been revealed or no eligible cell remains. One disabled above-cap cell alone does not end the round.
Is the 3xx No Three Square demo free for players in the Philippines?
Yes, the demo uses virtual coins and is free to play. You do not need to deposit real Philippine Peso (PHP) to try the game, but you should check the operator's site for real-money options.
Does 3xx support GCash and Maya for Philippine players?
This depends on the operator's current settings. You should check the deposit page on the official 3xx site to confirm if GCash and Maya are available as payment methods for your region.
